New views on O2 transfer across the placenta.
D000818:Animals; D002415:Cats; D002417:Cattle; D004285:Dogs; D005260:Female; D006168:Guinea Pigs; D006801:Humans; D008431:Maternal-Fetal Exchange; D010100:Oxygen / Q000097:blood*; D011247:Pregnancy; D011817:Rabbits; D012756:Sheep; D013552:Swine
D010100:Oxygen